Solved papers for JEE Main & Advanced JEE Main Paper (Held On 19 May 2012)

done JEE Main Paper (Held On 19 May 2012) Total Questions - 1

• question_answer1) Two coherent plane light waves of equal amplitude makes a small angle a (« 1) with each other. They fall almost normally on a screen. If \[\lambda \] the wavelength of light waves, the fringe width \[\Delta x\]of interference patterns of the two sets of waves on the screen is     JEE Main  Online Paper (Held On 19  May  2012)
  A)
  \[\frac{2\lambda }{\alpha }\]                                     
  done clear
  B)
                         \[\frac{\lambda }{\alpha }\]
  done clear
  C)
                         \[\frac{\lambda }{\left( 2\alpha  \right)}\]                           
  done clear
  D)
                         \[\frac{\lambda }{\sqrt{\alpha }}\]
  done clear
  View Answer play_arrow